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1 <br /> IWEGIS ENVIRONMENTAL, INC. <br /> STANDARD OPERATING PROCEDURES <br /> REA ABORATORY ANALYTICAL QUALITY ASSURANCE AND CONTROL <br /> SOP-5 <br /> In addition t routine ou tin <br /> a instrument calibration, replicates, spikes, blanks, spiked blanks, and certified <br /> reference materials are routinely analyzed at method-specific frequencies to monitor precision and <br /> bias Additional components of the laboratory Quality Assurance/Quality Control program include <br /> 1 Participation in state and federal laboratory accreditation/certification programs, <br /> 2 Participation in both U S EPA Performance Evaluation studies (WS and WP studies) and inter- <br /> laboratory performance evaluation programs, <br /> 3 Standard operating procedures describing routine and periodic instrument maintenance, <br /> 4 "Out-of-Control"/Corrective Action documentation procedures, and, <br /> 5 Multi-level review of raw data and client reports <br /> I <br /> I <br /> ATTACHMENT/S0P-5/SEFTEMBER 1992 <br />